:root {
      --page-13winlink-primary-color: #e44d26; /* Màu cam đậm */
      --page-13winlink-secondary-color: #333;
      --page-13winlink-accent-color: #ff9800; /* Màu cam sáng */
      --page-13winlink-background-light: #f5f5f5;
      --page-13winlink-text-dark: #333;
      --page-13winlink-text-light: #fff;
      --page-13winlink-border-color: #ddd;
    }

    .page-13winlink {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--page-13winlink-text-dark);
      background-color: var(--page-13winlink-background-light);
      padding-bottom: 80px; /* Space for fixed button */
    }

    .page-13winlink__hero-section {
      position: relative;
      width: 100%;
      min-height: 300px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: var(--page-13winlink-text-light);
      background-color: var(--page-13winlink-secondary-color);
      overflow: hidden;
      padding-top: 60px; /* For desktop header */
      box-sizing: border-box;
    }

    .page-13winlink__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
      opacity: 0.7;
    }

    .page-13winlink__hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      padding: 20px;
      background: rgba(0, 0, 0, 0.5);
      border-radius: 10px;
      margin: 20px;
    }

    .page-13winlink__hero-title {
      font-size: 2.5em;
      margin-bottom: 10px;
      color: var(--page-13winlink-text-light);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-13winlink__hero-subtitle {
      font-size: 1.2em;
      margin-bottom: 20px;
      color: var(--page-13winlink-text-light);
    }

    .page-13winlink__cta-button {
      display: inline-block;
      background-color: var(--page-13winlink-primary-color);
      color: var(--page-13winlink-text-light);
      padding: 15px 30px;
      border-radius: 5px;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease;
      font-size: 1.1em;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }

    .page-13winlink__cta-button:hover {
      background-color: var(--page-13winlink-accent-color);
    }

    .page-13winlink__floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--page-13winlink-primary-color);
      color: var(--page-13winlink-text-light);
      padding: 15px 25px;
      border-radius: 30px;
      font-weight: bold;
      text-align: center;
      text-decoration: none;
      z-index: 1000;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      animation: page-13winlink-pulse 1.5s infinite;
      transition: background-color 0.3s ease;
      white-space: nowrap;
      font-size: 1.1em;
    }

    .page-13winlink__floating-button:hover {
      background-color: var(--page-13winlink-accent-color);
    }

    @keyframes page-13winlink-pulse {
      0% {
        transform: translateX(-50%) scale(1);
      }
      50% {
        transform: translateX(-50%) scale(1.05);
      }
      100% {
        transform: translateX(-50%) scale(1);
      }
    }

    .page-13winlink__section {
      padding: 40px 20px;
      max-width: 1200px;
      margin: 0 auto;
      background-color: var(--page-13winlink-text-light);
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      margin-bottom: 20px;
    }

    .page-13winlink__section-title {
      font-size: 2em;
      color: var(--page-13winlink-primary-color);
      text-align: center;
      margin-bottom: 30px;
      position: relative;
    }

    .page-13winlink__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: -10px;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background-color: var(--page-13winlink-accent-color);
      border-radius: 2px;
    }

    .page-13winlink__text-content p {
      margin-bottom: 15px;
      font-size: 1.05em;
      text-align: justify;
    }

    .page-13winlink__text-content strong {
      color: var(--page-13winlink-primary-color);
    }

    .page-13winlink__grid-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-13winlink__grid-item {
      background-color: #fff;
      border: 1px solid var(--page-13winlink-border-color);
      border-radius: 8px;
      padding: 20px;
      text-align: center;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .page-13winlink__grid-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }

    .page-13winlink__grid-item img {
      max-width: 100%;
      height: auto;
      border-radius: 5px;
      margin-bottom: 15px;
      width: 100%; /* Ensure images take full width of container */
      object-fit: cover;
      min-height: 200px; /* Minimum size for content images */
    }
    
    .page-13winlink__grid-item-title {
      font-size: 1.3em;
      color: var(--page-13winlink-primary-color);
      margin-bottom: 10px;
    }

    .page-13winlink__list {
      list-style: none;
      padding: 0;
      margin-top: 20px;
    }

    .page-13winlink__list-item {
      background-color: #fff;
      border-left: 5px solid var(--page-13winlink-primary-color);
      padding: 15px 20px;
      margin-bottom: 10px;
      border-radius: 5px;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
      font-size: 1.05em;
    }

    .page-13winlink__faq-section {
      padding: 40px 20px;
      max-width: 900px;
      margin: 0 auto;
      background-color: var(--page-13winlink-text-light);
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      margin-bottom: 20px;
    }

    .page-13winlink__faq-item {
      border: 1px solid var(--page-13winlink-border-color);
      border-radius: 8px;
      margin-bottom: 10px;
      overflow: hidden;
      background-color: #f9f9f9;
    }

    .page-13winlink__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #eee;
      cursor: pointer;
      user-select: none;
      font-weight: bold;
      color: var(--page-13winlink-secondary-color);
      transition: background-color 0.3s ease;
    }

    .page-13winlink__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-13winlink__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-13winlink-primary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-13winlink__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click event */
      color: var(--page-13winlink-primary-color);
    }

    .page-13winlink__faq-item.active .page-13winlink__faq-toggle {
      transform: rotate(45deg);
    }

    .page-13winlink__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      background-color: #fff;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      color: var(--page-13winlink-text-dark);
    }

    .page-13winlink__faq-item.active .page-13winlink__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px 20px !important;
      opacity: 1;
    }

    .page-13winlink__faq-answer p {
      margin: 0;
      padding-bottom: 10px;
    }
    
    .page-13winlink__image-container {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
        margin-bottom: 20px;
    }

    .page-13winlink__image-container img {
        max-width: 100%;
        height: auto;
        display: block;
        border-radius: 8px;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-13winlink__hero-section {
        padding-top: 10px; /* Adjust for mobile header */
        min-height: 250px;
      }

      .page-13winlink__hero-title {
        font-size: 1.8em;
      }

      .page-13winlink__hero-subtitle {
        font-size: 1em;
      }

      .page-13winlink__cta-button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-13winlink__floating-button {
        padding: 12px 20px;
        font-size: 0.9em;
        width: calc(100% - 40px);
        bottom: 15px;
      }

      .page-13winlink__section {
        padding: 30px 15px;
      }

      .page-13winlink__section-title {
        font-size: 1.7em;
        margin-bottom: 20px;
      }

      .page-13winlink__text-content p {
        font-size: 0.95em;
      }

      .page-13winlink__grid-container {
        grid-template-columns: 1fr;
      }
      
      .page-13winlink__grid-item img {
        min-height: 150px;
      }

      .page-13winlink__grid-item-title {
        font-size: 1.1em;
      }

      .page-13winlink__list-item {
        font-size: 0.95em;
        padding: 12px 15px;
      }

      .page-13winlink__faq-section {
        padding: 30px 15px;
      }

      .page-13winlink__faq-question {
        padding: 12px 15px;
      }

      .page-13winlink__faq-question h3 {
        font-size: 1em;
      }

      .page-13winlink__faq-answer {
        padding: 0 15px;
      }
      .page-13winlink__faq-item.active .page-13winlink__faq-answer {
        padding: 15px 15px !important;
      }

      .page-13winlink__image-container img {
          max-width: 100% !important;
          height: auto !important;
      }
    }